Displaying 256576 - 256650 out of 267716 Object(s)

Author(s) Year Article/Chapter Title Book/Journal
Dewey, R. M. 1989 Genetic variation in the liverwort Riccia dictyospora (Ricciaceae, Hepaticopsida)   View Details Systematic Botany
Ness, B. D. 1989 Seed morphology and taxonomic relationships in Calochortus (Liliaceae)   View Details Systematic Botany
Wiley, Edward O. /11/1980 Phylogenetic systematics and vicariance biogeography   View Details Systematic Botany
Wiley, Edward O. /12/1981 Convex groups and consistent classification   View Details Systematic Botany
Carson, Hampton L. 30/10/1985 Unification of speciation theory in plants and animals   View Details Systematic Botany
Reinke, Danny C., Bloom, William L. /04/1980 Pollen dispersal in natural populations : a method for tracking individual pollen grains   View Details Systematic Botany
Petersen, Frank P., Fairbrothers, David E. 08/04/1983 A serotaxonomic appraisal of Amphipterygium and Leitneria--two amentiferous taxa of Rutiflorae (Rosidae)   View Details Systematic Botany
Decker-Walters, Deena S., Wilson, Hugh D. 1986 Numerical analysis of seed morphology in Cucurbita pepo   View Details Systematic Botany
Decker-Walters, Deena S., Wilson, Hugh D. 20/05/1987 Allozyme variation in the Cucurbita pepo complex: C. pepo var. ovifera vs. C. texana   View Details Systematic Botany
Carulli, J. P., Fairbrothers, David E. 1988 Allozyme variation in three eastern United States species of Aeschynomene (Fabaceae), including the rare A virginica   View Details Systematic Botany
Abu-Asab, Mones S., Cantino, Philip D. 1989 Pollen morphology of Trichostema (Labiatae) and its systematic implications   View Details Systematic Botany
Bateman, R. M., DiMichele, W. A. 1990 Hizemodendron, gen. nov., a Pseudoherbaceous segregate of Lepidodendron (Pennsylvanian): Phylogenetic context for evolutionary changes in Lycopsid growth architecture   View Details Systematic Botany
Soltis, Pamela S., Bloom, William L. 1991 Allozymic differentiation between Clarkia nitens and C. speciosa (Onagraceae)   View Details Systematic Botany
Abu-Asab, Mones S., Cantino, Philip D. 1993 Systematic implications of pollen morphology in tribe Prostanthereae (Labiatae)   View Details Systematic Botany
Hoey, M. T., Parks, C. R. 1994 Genetic divergence in Liquidambar styracifflua, L. formosana, and L. acalycina (Hamamelidaceae)   View Details Systematic Botany
Anderson, Loran C., Hartman, Ronald L., Stuessy, Tod F. /10/1979 Morphology, anatomy, and taxonomic relationships of Otopappus australis (Asteraceae)   View Details Systematic Botany
Jansen, Robert K., Harriman, Neil A., Urbatsch, Lowell E. 14/10/1982 Squamopappus gen. nov. and redefinition of Podachaenium (Compositae: Heliantheae)   View Details Systematic Botany
McKenzie, Paul M., Urbatsch, Lowell E., Proctor, George R. 1990 Aristida correlliae, a new species of Poaceae from the Turks and Caicos Islands   View Details Systematic Botany
Stein, W. E., Wight, David C., Beck, Charles B. 07/03/1984 Possible alternatives for the origin of Sphenopsida   View Details Systematic Botany
Abu-Asab, Mones S., Cantino, Philip D., Nowicke, J. W., Sang, T. 1993 Systematic implications of pollen morphology in Caryopteris (Labiatae)   View Details Systematic Botany
Ellstrand, Norman C., Torres, Andrew M., Levin, Donald A. /07/1979 Density and the rate of apparent outcrossing in Helianthus annuus (Asteraceae)   View Details Systematic Botany
Carey, Ken, Ganders, Fred R. 19/02/1987 Patterns of isoenzyme variation in Plectritis (Valerianaceae)   View Details Systematic Botany
Meyn, Ossi, Emboden, William A. 18/08/1987 Parameters and consequences of introgression in Salvia apiana x S. mellifera (Lamiaceae)   View Details Systematic Botany
Beal, Ernest O., Southall, E. M. /09/1977 The taxonomic significance of experimental selection by vernalization in Nymphar (Nymphaeaceae)   View Details Systematic Botany
Lloyd, Robert Michael, Warne, Thomas R. 09/01/1979 The absence of genetic load in a morphologically variable sexual species, Ceratopteris thalictroides (Parkeriaceae)   View Details Systematic Botany
Essig, Frederick B., Young, Bradford E. /10/1979 A systematic histological study of palm fruits. II. The Areca alliance   View Details Systematic Botany
Argus, George W., Steele, John W. /01/1980 A reevaluation of the taxonomy of Salix tyrrellii, a sand dune endemic   View Details Systematic Botany
Jackson, Raymond C., Dimas, Calixto T. /08/1981 Experimental evidence for systematic placement of the Haplopappus phyllocephalus complex (Compositae)   View Details Systematic Botany
McDade, Lucinda A., Lundberg, John G. /03/1982 A new tabular and diagrammatic method for displaying artificial hybridization data, with an example from Aphelandra (Acanthaceae)   View Details Systematic Botany
Whalen, Michael D., Caruso, Elizabeth E. 26/10/1983 Phylogeny in Solanum sect. Lasiocarpa (Solanaceae): congruence of morphological and molecular data   View Details Systematic Botany
Anderson, Edward F., Skillman, Susan M. 07/03/1984 A comparison of Aztekium and Strombocactus (Cactaceae)   View Details Systematic Botany
Wagner, Warren L., Mill, Susan W. 07/03/1984 Oenothera kleinii (Onagraceae), a new species from southcentral Colorado   View Details Systematic Botany
Hayden, W. J., Brandt, Dörthe S. 1984 Wood anatomy and relationships of Neowawraea (Euphorbiaceae)   View Details Systematic Botany
Schilling, Edward E., Schilling, Elizabeth M. 28/02/1986 Chromosome numbers in Viguiera series Dentatae (Compositae)   View Details Systematic Botany
Matthews, James F., Levins, Patricia A. 16/05/1986 The systematic significance of seed morphology in Portulaca (Portulacaceae) under scanning electron microscopy   View Details Systematic Botany
Ranker, Thomas A., Schnabel, Andrew F. 23/07/1986 Allozymic and morphological evidence for a progenitor-derivative species pair in Camassia (Liliaceae)   View Details Systematic Botany
Rieseberg, Loren H., Warner, Donn A. 20/05/1987 Electrophoretic evidence for hybridization between Tragopogon mirus and T. miscellus (Compositae)   View Details Systematic Botany
Vickery, Robert K., Wullstein, Betty M. 18/08/1987 Comparison of six approaches to the classification of Mimulus sect. Erythranthe (Scrophulariaceae)   View Details Systematic Botany
Lorence, David H., Colin, R. T. 1988 Carica cnidoscoloides (sp. nov. ) and sect. Holostigma (sect. nov. ) of Caricaceae from southern Mexico   View Details Systematic Botany
Price, R. A., Lowenstein, J. M. 1989 An immunological comparison of the Sciadopityaceae, Taxodiaceae, and Cupressaceae   View Details Systematic Botany
Schaffer, William M., Leight, Egbert G. /03/1977 The prospective role of mathematical theory in plant ecology   View Details Systematic Botany
Nesom, Guy L., Vorobik, L. A. 1988 Hedyotis spellenbergii (Rubiaceae), a new species from Chihuahua, M‚xico   View Details Systematic Botany
Shaw, A. Jonathan, Bartow, S. M. 1992 Genetic structure and phenotypic plasticity in proximate populations of the moss. Funar¡a hygromelrica   View Details Systematic Botany
Small, Ernest, Jui, Perry Y., Lefkovitch, L. P. 09/06/1976 A numerical taxonomic analysis of Cannabis with special reference to species delimitation   View Details Systematic Botany
Bohm, Bruce A., Banek, Harry M., Maze, Jack R. 31/07/1984 Flavonoid variation in North American Menziesia (Ericaceae)   View Details Systematic Botany
Goldblatt, Peter, Rudall, P. J., Henrich, J. E. 1990 The genera of the Sisyrinchium alliance (Iridaceae: Iridoideae): Phylogeny and relationships   View Details Systematic Botany
Jansen, Robert K., Harrjman, N. A., Urbatsch, Lowell E. 1982 Squamopappus gen. nov. and redefinition of Podachaenium (Compositae: Heliantheeae)   View Details Systematic Botany
Fryxell, Paul A., Craven, L. A., Stewart, J. M. 1992 A revision of Gossypium sect. Grandicalyx (Malvaceae), including the description of six new species   View Details Systematic Botany
Brunsfeld, S., Soltis, Douglas E., Solus, P. S. 1992 Evolutionary patterns and processes in Salix sect. Longifoliae: Evidence from chloroplast DNA   View Details Systematic Botany
Pinkava, Donald J., Baker, Marc A., Parfitt, Bruce D., Mohlenbrock, Mark W., Worthington, Richard D. 30/10/1985 Chromosome numbers in some cacti of western North America-V   View Details Systematic Botany
Kelman, W. M. 1990 A revision of Fremontodendron (Sterculiaceae)   View Details Systematic Botany
David, Jerrold I. 26/10/1983 Phenotypic plasticity and the selection of taxonomic characters in Puccinellia (Poaceae)   View Details Systematic Botany
Barrett, H. C., Rhodes, A. F. /11/1976 A numerical taxonomic study of affinity relationships in cultivated Citrus and its close relatives   View Details Systematic Botany
Stephenson, Andrew J., Thomas, W. 05/05/1978 Diurnal and nocturnal pollination of Catalpa speciosa (Bignoniaceae)   View Details Systematic Botany
Kubetin, William R., Schaal, B. A. /01/1980 Apportionment of isozyme variability in Polygonum pensylvanicum (Polygonaceae)   View Details Systematic Botany
Grieve, Catherine M., Scora, Rainer W. /10/1980 Flavonoid distribution in the Aurantioideae (Rutaceae)   View Details Systematic Botany
Crawford, Danlel J., Bayer, Randall J. /12/1981 Allozyme divergence in Coreopsis cyclocarpa (Compositae)   View Details Systematic Botany
Breckenridge, F G., Miller, John M. 14/10/1982 Pollination biology, distribution, and chemotaxonomy of the Echinocereus enneacanthus complex (Cactaceae)   View Details Systematic Botany
Randall, John L., Hilu, Khidir W. 1986 Biosystematic studies of North American Trisetum spicatum (Poaceae)   View Details Systematic Botany
Natgata, Kenneth M., Gon, Samuel M. 18/08/1987 Sanícula mariversa (Apiaceae), a new species from 'Ökikilolo Ridge, Waianae Mountains, O'ahu in the Hawaiian Archipelago   View Details Systematic Botany
Breckenridge, F. G., Miller, J. M. 1990 Pollination biology, distribution and chemotaxonomy of the Echinocereus enneacanthus complex (Cactaceae)   View Details Systematic Botany
Peterson, Frank P., Fairbrothers, David E. /04/1980 Serological investigation of selected amentiferous taxa   View Details Systematic Botany
Donaghue, Michael J., Cantino, Philip D. 14/05/1984 The logic and limitations of the outgroup substitution approach to cladistic analysis   View Details Systematic Botany
Atkins, Riley J., Barkworth, Mary E., Dewey, Douglas R. 31/07/1984 A taxonomic study of Leymus ambiguus and L. salinus (Poaceae: Triticeae)   View Details Systematic Botany
Brown, Gregory K., Clark, Dennis 04/06/1982 Taxonomy of Happlopappus sect.Gymnocoma (Compositae)   View Details Systematic Botany
Lavin, Matt, Sousa S., Mario 19/02/1987 The Madrensis group of Coursetia (Leguminosae: Robinieae)   View Details Systematic Botany
Hatch, Stephan L., Valdes R., Jesus, Morden, Clifford W. 28/02/1986 Stipa hirticulmis (Poaceae: Stipeae), a new species from Nuevo León, Mexico   View Details Systematic Botany
Urbatsch, Lowell E., Zlotsky, Amy, Pruski, John F. 1986 Revision of Galea sect. Lemmatium (Asteraceae: Heliantheae) from Brazil   View Details Systematic Botany
Gottlieb, Leslie D., Pilz, G. /11/1976 Genetic similarity between Gaura longifolia and its obligately outcrossing derivative G. demareei   View Details Systematic Botany
Semple, John C., Semple, Kathleen Shea /07/1978 Borrichia X cubana (B. frutescens X arborescens) : interspecific hybridization in the Florida Keys   View Details Systematic Botany
Bell, N., Lester, L. James 09/01/1979 Genetic and morphological detection of introgression in a clinal population of Sabatia section Campestria (Gentianaceae)   View Details Systematic Botany
Wilken, Dieter H., Allard, Susan Tabar 28/02/1986 Intergradation among populations of the Ipomopsis aggregata complex in the Colorado Front Range   View Details Systematic Botany
Shannon, T. Randolph, Wyatt, Robert 16/05/1986 Pollen germinability of Asclepias exaltata: effects of flower age, drying time, and pollen source   View Details Systematic Botany
Hernández, Héctor M., Sousa S., M. 1988 Two new species of Calliandra (Leguminosae: Mimosoideae) from southern Mexico   View Details Systematic Botany
Goldberg, Aaron, Nelson S., C. 1989 Brongniartia vazquezii (Fabaceae: Faboideae), a new species from the state of Morelos, México   View Details Systematic Botany